echo "刘攀2224030096"
for((i=1; i<=6; i++))
do
  for((m=6; m>=i; m--))
  do
    echo -n " "
  done
  for((m=1; m<=2*i-1; m++))
  do
    echo -n "*"
  done
echo
done
for((i=1; i<=6; i++))
do
  echo -n " "
  for((m=i; m>0; m--))
  do
    echo -n " "
  done
  for((m=2*(6-i)-1; m>0; m--))
  do
    echo -n "*"
  done
  echo;
done
